Enter Air (E4, Warsaw Chopin) is one of three airlines to have secured summer charter contracts with UK tour operator, Cosmos, following Monarch Airlines (1968)' decision to withdraw from the charter and longhaul flights sector.

"Our aim in choosing our partners has been to ensure that our customers get the excellent level of service they expect when taking a Cosmos Holiday - we are very happy that this will be the case," Monarch's tour operating division sales director Gary Anslow said. "However destinations that were previously serviced by Monarch charters will now be with our new partner airlines, or on other scheduled airlines."

The Polish carrier will operate certain routes from Manchester International and Birmingham, GB to Greece while Small Planet Airlines (Vilnius) has been mandated to operate specific routes from London Gatwick to Greece. Norwegian (Oslo Gardermoen) has been awarded transatlantic flights covering London Gatwick to Florida using its B787-8 fleet.

Following its acquisition by Greybull Capital LLP in October last year, Monarch announced it would transition into a "premium budget carrier" while ending all long-haul and charter operations by April this year.